CN104175079A - Manufacturing process of ball valve for gas meter pipeline - Google Patents
Manufacturing process of ball valve for gas meter pipeline Download PDFInfo
- Publication number
- CN104175079A CN104175079A CN201410433074.4A CN201410433074A CN104175079A CN 104175079 A CN104175079 A CN 104175079A CN 201410433074 A CN201410433074 A CN 201410433074A CN 104175079 A CN104175079 A CN 104175079A
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- Prior art keywords
- cold
- valve
- backstay
- valve gap
- valve body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/001—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Forging (AREA)
- Valve Housings (AREA)
Abstract
The invention discloses a manufacturing process of a ball valve for a gas meter pipeline and belongs to the field of ball valve manufacturing. The manufacturing process used for gas is low in pollution and energy consumption and high in safety performance. The technical scheme includes that raw metals are molded through multiple cold heading extrusions, and deformation resistance in the metals is gradually eliminated.
Description
Technical field
The present invention relates to a kind of valve manufacturing process, more particularly, it relates to a kind of ball valve manufacturing process.
Background technology
Ball valve, opening and closing element (spheroid) is driven by valve rod, and the valve rotating as axis around square work ball valve, along with scientific and technical develop rapidly, updating of production technology and product structure, in the 40 short years, has developed rapidly and has become a kind of main valve class.
In prior art, the Chinese invention patent China that is CN201310307927.5 at application number discloses a kind of valve body casting technique, inside and outside two-layer bright, the blind riser of described process using and external chill chilling technology combine, effectively eliminate Thin-Section Steel Castings shrinkage cavity and porosity problem in process of production, described technique has formed a set of complete Control of Internal Quality system, thereby efficiently solves the difficult problem that obstructed, the upper and lower flange of feeding a casting passage position feeding a casting that ball valve main valve body causes because of structure problem can not take into account.
At present, ball valve is because it is hollow structure small in ends broad in the middle, so the manufacture of ball valve is generally to form by casting, and casting technique exists seriously polluted, high, the high in cost of production defect that consumes energy, and there is the defects such as husky hole, pore in the product casting out.
Summary of the invention
For the deficiency of prior art existence, the object of the present invention is to provide the coal gas ball valve manufacturing process of a kind of low pollution, low power consuming, high safety performance.
For achieving the above object, the invention provides following technical scheme: a kind of gas meter pipeline ball valve manufacturing process, it is characterized in that, comprise the following steps:
Step 1, manufacture valve body:
1) blanking: in die of cold heading machine, add the raw material for the manufacture of valve body, raw material is made to blank;
2) pressure ball: in die of cold heading machine, blank is carried out to pressure ball, raw material is made to spherical blank;
3) integer: in die of cold heading machine, spherical blank is carried out to integer, cold-heading goes out valve body profile;
4) macropore stretches: the one end to valve body profile stretches, and cold-heading goes out ball valve cavity and is positioned at valve body week locating surface upwards;
5) aperture stretches: the other end to valve body profile stretches, and cold-heading goes out ball valve interface;
6) punching: in punch press, punching goes out to be positioned at the first connecting hole of ball valve interface end face;
7) tack: on lathe, turning processes flat end face to connecting hole, and car goes out the internal thread at valve body two ends;
8) boring: in drilling machine, process the installing hole on locating surface;
Step 2, manufacture backstay:
1) blanking: in die of cold heading machine, add the raw material for the manufacture of backstay, process backstay blank;
2) integer: in die of cold heading machine, backstay is carried out to cold-heading extruding integer, process backstay profile, be provided with instruction projection on described backstay profile;
3) stretch: in die of cold heading machine, backstay profile is continued to cold-heading, make the backstay protruding with instruction;
4) punching: in punch press, punching goes out backstay axis hole;
5) face work: on lathe, the backstay two ends of turning, process the smooth backstay in two ends;
6) car hole: in lathe, backstay axis hole is carried out to car hole;
7) ride rank: on lathe, turning go out with valve body on the connecting rod of installing hole adaptation;
Step 3, manufacture valve gap:
1) blanking: in die of cold heading machine, add the raw material for the manufacture of valve gap, process valve gap blank;
2) pressure ball: in die of cold heading machine, valve gap blank is carried out to pressure ball, make described valve gap blank be chondritic;
3) moulding: in die of cold heading machine, valve gap is carried out to cold-heading integer, process valve gap profile;
4) macropore stretches: the one end to valve gap profile stretches, and cold-heading goes out valve gap cavity;
5) aperture stretches: the other end to valve body profile stretches, and cold-heading goes out valve gap interface;
6) facing screw thread: on punch press, punching goes out to be positioned at the second connecting hole on described valve gap interface;
7) the outer tooth endoporus of car: on lathe, turning goes out the flat end face of the second connecting hole, and processes the external screw thread of valve gap cavity and the internal thread of valve gap interface.
Step 4, assembling:
Described backstay is plugged on the installing hole of described valve body by connecting rod, and by being welded and fixed, described valve body and valve gap are connected to form ball valve chamber by internal thread, external screw thread on ball valve cavity and valve gap cavity, and described ball valve is packaged with spool in chamber.
The ball valve of making by above-mentioned processes, valve body is metal material through cold-heading molding repeatedly, therefore intensity is high in order to be cut off for metallic fiber, smooth surface, steel utilization ratio is high, it is low, pollution-free to consume energy.
The present invention is further set to: described spherical blank and valve gap blank are all processed to form profile through three integers.
By adopting technique scheme, described ball valve blank metal each several part in cold-heading process is stressed evenly, and internal stress changes balance, and metal structure is more stable.
Compared with prior art, the present invention adopts repeatedly cold-heading, and blank is carried out to preprocessing (pressure ball), reduced metal and in cold-heading process, occurred the possibility rupturing, made metal inside distortion evenly, metallicity is better, compared to forging, it is low, pollution-free that the present invention is consumed energy, and ball valve smooth surface, the good seal performance made are more safe and reliable.
Brief description of the drawings
Fig. 1 is the process chart of gas meter pipeline of the present invention ball valve manufacturing process embodiment;
Fig. 2 is the ball valve stereogram of gas meter pipeline of the present invention ball valve manufacturing process embodiment.
Reference numeral: 1. valve body; 2. backstay; 3. valve gap.
Detailed description of the invention
Referring to figs. 1 through Fig. 2, gas meter pipeline of the present invention is described further with ball valve manufacturing process embodiment.
A kind of gas meter pipeline ball valve manufacturing process, comprises the following steps:
Step 1, manufacture valve body 1:
In die of cold heading machine, add the raw material for the manufacture of valve body 1, process valve body 1 blank, then blank is carried out to pressure ball, raw material is made to spherical blank; In die of cold heading machine, spherical blank is carried out to integer three times, cold-heading goes out valve body 1 profile gradually; One end to valve body 1 profile stretches, and cold-heading squeezes out ball valve cavity and is positioned at valve body 1 week locating surface upwards; The other end to valve body 1 profile stretches, and cold-heading squeezes out ball valve interface; In punch press, punching goes out to be positioned at the first connecting hole of ball valve interface end face; On lathe, to connecting hole, turning processes flat end face, and car goes out the internal thread at valve body 1 two ends; In drilling machine, process the installing hole on locating surface;
Step 2, manufacture backstay 2:
In die of cold heading machine, process backstay 2 blanks; In die of cold heading machine, backstay 2 is carried out to three cold-headings extruding integer, process backstay 2 profiles, on described backstay 2 profiles, be provided with instruction projection; In die of cold heading machine, backstay 2 profiles are continued to cold-heading, make the backstay 2 protruding with instruction; In punch press, punching goes out backstay 2 axis holes; On lathe, backstay 2 two ends of turning, process the smooth backstay in two ends 2; In lathe, backstay 2 axis holes are carried out to car hole; On lathe, turning go out with valve body 1 on the connecting rod of installing hole adaptation;
Step 3, manufacture valve gap 3:
In die of cold heading machine, process valve gap 3 blanks; In die of cold heading machine, valve gap 3 blanks are carried out to pressure ball, make described valve gap 3 blanks be chondritic; In die of cold heading machine, valve gap 3 is carried out to cold-heading integer three times, process valve gap 3 profiles; One end to valve gap 3 profiles stretches, and cold-heading goes out valve gap 3 cavitys; The other end to valve body 1 profile stretches, and cold-heading goes out valve gap 3 interfaces; On punch press, punching goes out to be positioned at the second connecting hole on described valve gap 3 interfaces; On lathe, turning goes out the flat end face of the second connecting hole, and processes the external screw thread of valve gap 3 cavitys and the internal thread of valve gap 3 interfaces.
Step 4, assembling:
Described backstay 2 is plugged on the installing hole of described valve body 1 by connecting rod, and by being welded and fixed, described valve body 1 and valve gap 3 are connected to form ball valve chamber by internal thread, external screw thread on ball valve cavity and valve gap 3 cavitys, and described ball valve is packaged with spool in chamber.
The ball valve of making by above-mentioned processes, valve body 1 is metal material through cold-heading molding repeatedly, therefore intensity is high in order to be cut off for metallic fiber, smooth surface, steel utilization ratio is high, it is low, pollution-free to consume energy, and described spherical blank and valve gap 3 blanks are all processed to form profile through three integers, and described ball valve blank metal each several part in cold-heading process is stressed evenly, internal stress changes balance, and metal structure is more stable.
In above-mentioned cold-heading step process, the cold-heading size that per pass technique is concrete is to determine according to scantling, workpiece shape, can obtain thus upsetting ratio and upsetting rate.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is also not only confined to above-described embodiment, and all technical schemes belonging under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. a gas meter pipeline ball valve manufacturing process, is characterized in that, comprises the following steps:
Step 1, manufacture valve body:
Blanking: in die of cold heading machine, add the raw material for the manufacture of valve body, raw material is made to blank;
Pressure ball: in die of cold heading machine, blank is carried out to pressure ball, raw material is made to spherical blank;
Integer: in die of cold heading machine, spherical blank is carried out to integer, cold-heading goes out valve body profile;
Macropore stretches: the one end to valve body profile stretches, and cold-heading goes out ball valve cavity and is positioned at valve body week locating surface upwards;
Aperture stretches: the other end to valve body profile stretches, and cold-heading goes out ball valve interface;
Punching: in die of cold heading machine, punching goes out to be positioned at the first connecting hole of ball valve interface end face;
Tack: on lathe, turning processes flat end face to connecting hole, and car goes out the internal thread at valve body two ends;
Boring: in drilling machine, process the installing hole on locating surface;
Step 2, manufacture backstay:
Blanking: in die of cold heading machine, add the raw material for the manufacture of backstay, process backstay blank;
Integer: in die of cold heading machine, backstay is carried out to cold-heading extruding integer, process backstay profile, be provided with instruction projection on described backstay profile;
Stretch: in die of cold heading machine, backstay profile is continued to cold-heading, make the backstay protruding with instruction;
Punching: in punch press, punching goes out backstay axis hole;
Face work: on lathe, the backstay two ends of turning, process the smooth backstay in two ends;
Che Kong: in lathe, backstay axis hole is carried out to car hole;
Ride rank: on lathe, turning go out with valve body on the connecting rod of installing hole adaptation;
Step 3, manufacture valve gap:
Blanking: in die of cold heading machine, add the raw material for the manufacture of valve gap, process valve gap blank;
Pressure ball: in die of cold heading machine, valve gap blank is carried out to pressure ball, make described valve gap blank be chondritic;
Moulding: in die of cold heading machine, valve gap is carried out to cold-heading integer, process valve gap profile;
Macropore stretches: the one end to valve gap profile stretches, and cold-heading goes out valve gap cavity;
Aperture stretches: the other end to valve body profile stretches, and cold-heading goes out valve gap interface;
Facing screw thread: on punch press, punching goes out to be positioned at the second connecting hole on described valve gap interface;
The outer tooth endoporus of car: on lathe, turning goes out the flat end face of the second connecting hole, and processes the external screw thread of valve gap cavity and the internal thread of valve gap interface
Step 4, assembling:
Described backstay is plugged on the installing hole of described valve body by connecting rod, and by being welded and fixed, described valve body and valve gap are connected to form ball valve chamber by internal thread, external screw thread on ball valve cavity and valve gap cavity, and described ball valve is packaged with spool in chamber.
2. a kind of gas meter pipeline ball valve manufacturing process according to claim 1, is characterized in that: described spherical blank is processed to form valve body profile through three integers.
3. a kind of gas meter pipeline ball valve manufacturing process according to claim 1, is characterized in that: described valve gap blank is processed to form valve gap profile through three integers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410433074.4A CN104175079B (en) | 2014-08-29 | 2014-08-29 | A kind of gas meter pipeline ball valve manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410433074.4A CN104175079B (en) | 2014-08-29 | 2014-08-29 | A kind of gas meter pipeline ball valve manufacturing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104175079A true CN104175079A (en) | 2014-12-03 |
| CN104175079B CN104175079B (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410433074.4A Active CN104175079B (en) | 2014-08-29 | 2014-08-29 | A kind of gas meter pipeline ball valve manufacturing process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105619024A (en) * | 2015-03-12 | 2016-06-01 | 重庆华驰文具有限公司 | Manufacturing method for stainless steel valve element |
| CN111531117A (en) * | 2020-04-30 | 2020-08-14 | 温州博宇机械有限公司 | Machining process of ball valve housing and ball valve housing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62179839A (en) * | 1986-02-05 | 1987-08-07 | Fuji Valve Kk | Manufacture of engine valve |
| CN1981952A (en) * | 2006-05-22 | 2007-06-20 | 大连大洋阀门研究发展有限公司 | Integrated die forge forming method for flange valve |
| CN102773387A (en) * | 2012-08-16 | 2012-11-14 | 大连大高阀门股份有限公司 | Forging method for flange type ball valve cover |
| CN102873239A (en) * | 2012-09-28 | 2013-01-16 | 江苏隆盛钻采机械制造有限公司 | Full-closed multi-way integral die-forging forming process for large-size valve bodies |
| CN103418750A (en) * | 2013-07-22 | 2013-12-04 | 洛阳市兴荣工业有限公司 | Spherical valve main body casting technology |
-
2014
- 2014-08-29 CN CN201410433074.4A patent/CN104175079B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62179839A (en) * | 1986-02-05 | 1987-08-07 | Fuji Valve Kk | Manufacture of engine valve |
| CN1981952A (en) * | 2006-05-22 | 2007-06-20 | 大连大洋阀门研究发展有限公司 | Integrated die forge forming method for flange valve |
| CN102773387A (en) * | 2012-08-16 | 2012-11-14 | 大连大高阀门股份有限公司 | Forging method for flange type ball valve cover |
| CN102873239A (en) * | 2012-09-28 | 2013-01-16 | 江苏隆盛钻采机械制造有限公司 | Full-closed multi-way integral die-forging forming process for large-size valve bodies |
| CN103418750A (en) * | 2013-07-22 | 2013-12-04 | 洛阳市兴荣工业有限公司 | Spherical valve main body casting technology |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105619024A (en) * | 2015-03-12 | 2016-06-01 | 重庆华驰文具有限公司 | Manufacturing method for stainless steel valve element |
| CN105619024B (en) * | 2015-03-12 | 2018-05-18 | 江苏莲源机械制造有限公司 | A kind of production method of stainless steel spool |
| CN111531117A (en) * | 2020-04-30 | 2020-08-14 | 温州博宇机械有限公司 | Machining process of ball valve housing and ball valve housing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104175079B (en) | 2016-06-08 |
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